'오존 (O3ohn)' – [jon2] [Credits] Produced, recorded, arranged, mixed by O3ohn Lyrics by O3ohn Mastering by Nahzam Sue @쑥고개스튜디오 lll Visual Director - lookooks Album art Visual Direct, Photography - lookooks Editing - Kim Jiwon

'오존(O3ohn)' – [jon1] [Credits] Produced, recorded, arranged, mixed by O3ohn Lyrics by O3ohn (Additional Lyrics by JOONIE on Track 3 ‘언제부터’) Mastering by Nahzam Sue @쑥고개스튜디오 lll Bass line ideas from Jung Dayung(ADOY) on Track 3 ‘언제부터’ Album art Styling, Photography - lookooks Logo design - O3ohn Editing - Ryu Hyun Cheol